Door holder



E. POSSON.

DooR HOLDER.

APPLICATION FILED SEPT. l2, 1919.

Patented Aug. s, 1922,

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" Patented Aug. 8, 119232,k

E. POSSON.

EDWARD PSSON', OF CHICAGO, LLINOIS.

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Specification of Letters Patent. PiqgH-{Qd' 53u03 S9 19222'.

aplicaran ined september 12, i919. semi No. 323,399.

To all 'zo/iam it may concern:

Ber it known that I, Enwisnnljosson, a lcitizen of the United'l States, residing` at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Door Holders, of which the. following is a specification.

This invention relates to a door holder, and, its purpose is to provide a 'device particularly vadaptedV for use with railwajt7 passenger vcars for holding the doors thereof in. open position. y

The principal object of the invention is to provide an improved overhead door holder which will not interfere Awith the movements of the lpassengersof the car. Another object is to provide a door holder lwhich hasl a permanent connection with the door and with the door frame, so that the positive `action thereof is v always insured when the door is opened. A further `object isto provide'a door holder'provided with two parts having a sliding connection with each other and provided with means adapted to form a locking connection between the parts when they have moved to the relative position corresponding to the open position of the door. Other objectsrelate to various features of constructionl and arrangement which will be pointed out more full-y hereinafter.

The nature of the invention will be understood from the following-specification, taken with the accompanying drawings, in which one embodiment is illustrated.

ln the drawings- Figure-.1 shows a front elevation of the upper portion` of a door and door easing' toivhichthe invention is applied;l

F 2 shows a sectional view yon the line 2 2 of Fig.,1, illustrating the door holder in end elevation; r f 'v Fig. 3 is horizontal sectional view through the door casing on the line 3-3 of Fig. 1, showing a top plan view of the door holder, and illustrating by dotted lines the relative position of the parts of the door holder when the door is open; and

Fig. 4 is an enlarged transverse sectional view on the line 4 4 of Fig. 1.

In the drawings, the invention is shown applied to a door 10 having an upper transverse frame member 10a, and a door frame 11 comprising an upper transverse door sill 12 of pressed metal construction, as illustrated particularly in Figs. 2 and e.

The door sill 12 is provided with a shoulder 12a against which'the frame member 10i1 ofthe door is adapted to seat and the upwardly extending flanges ofthe door sill are" secured to the plates 13 of the car wall which terminate on opposite sides of a channel frame member 14.K

The invention comprises a bracket 15 which is secured to the upper flange of the door sill and to the parts 13 and 14;, above described, by meansfofthe transversely eX- tending screw bolts 16 which are engaged on the opposite' side of the car wall by nuts 17. rllhe bracket 15 is provided with a depending part 15a' having two horizontally extending fianges 18 which-lare adaptedA to receive between them the 'rod'f19 which vforms one of the telescoping parts of the door stop. The member 19 is pivotally connected to the flanges 18 of the bracket by a vertically extending rivet or pin 20, and it has sliding engagement with a U- shaped stop member 21 which is secured to another rod 22 byl means of a Vseries of rivets YVhent-he door is in closed position., the rod 22 underlies the 'rod 19 and extendsy parallel thereto along the r door sill above the upper edge of the door with the stop member 21 extending' upwardly therefrom around the rod 19, as illustrated, for example, in Figs. 1 and a. A horizontal wear plate 2/1 of suitable material is inserted in a recess in the upper part of the socket which vis formed through the stop member 21, and this wear plate is adapted to slide upon the rod 22. The stop`member 21 is provided with a plurality of vertically extending grooves 25 with corresponding projections 25LL between them, and the end of the stop member opposite the bracket A15 is provided with converging surfaces 2G'. i

The stopl member 21 is adapted to engage the leaf springs 2S, which are'secured to. the opposite end of the member 19 by means of rivets 29. rllhe leaf springs 28 are bowed outwardly from the rod 19, and the free ends of the inner leaves thereof are bent inwardly to form the bow portions 28l which normally contact with the rod 19 and, upon relative movement of the rods 19 and 22 to the proper extent, are adapted to engage the inclined surfaces 26 on the stop member and thus slide into position engaging opposite grooves 25 in the sides of the stop member. When in this position, the springs 28 hold the rods 19 and22 against 'further movement. VThe end ofthe rod 22, opposite the stop member 21is offset downwardly, as shown at 22a,

and this part of the rod is extended between the flanges 30 which are formed on the upwardly extending-part 3l'.Ll of a bracket 31 whichis secured to the upper .trame member the door is opened, the rods 19and 22 turn ron their pivots andat the same time the rod 19 slides through the stop member 21Uuntil the endsv of the springs 428 engage the in-` clined surtaces26 on the stop member. The springs then spread aparta'nd slide over the sides of the stop member until they engage l the grooves 25, whereupon the partsof the doorholder become relatively iiXed and hold the door in its open position. When it is desired to .open the door, va quick movement thereof will release theV springs 28 from the grooves25 and permit the parts to be returned to the position illustrated inl Fig. l. By suitably proportioning the rods 19 and 22, and by varying the proportions of the stop member 21 and the springs 28, the door may beheld in'any desired open position.

Although I have shown vand described a singleembodiment of the invention forpu'rposes ,of illustration, it `will `be understood that it may be constructed in various other :torms without departing from the scope of the ,appendedv claims. Y .I claim y, 1. In combination, a door, a door casing,

arrod pivoted at one end on said door, ai second rodV pivoted at one -end on said casing, .a stop member securedv to the other end of one 'of said arms, and a spring secured to the otherl endV of the other of said arms` and adapted to engage directly said stop mem- 2. In combination, a door, a door casing, a rod pivoted at one end on said door,v a second rod pivoted at oneend on said casing, astop memberjsecured to the other end of one of lsaid arms, anda spring secured to the-other end of theV other of said arms and adapted to -engagesaid stop member, 'said stop 1 memi, i

ber havingla'recess slidablyl engaged said last-named arm.

3. Incombination, a door having an up-y per frame member, a horizontal door sill located above said `frame member, a bracket secured to said frame member, a vsecond bracket'secured to said door sill, ia" pair. of rods each pivoted on one of said brackets, a

stopmember mounted on one of said rodsand slidably engaged by the other of said rods, and springs carried by the other of vsaid rods and adapted to coact with opposite sides of said stop member. l

4, In combination, a'door havlng'lanrupper v stop membersaid stop member being cor.- i

rugated on itsy lateral sides to bel engaged by saidsprings. v 'i M5. vIn combination, a door, a door casing, a member pivotall'y'connected tofsaid door,'.a second member pivotallyjl'connected to said casing, astop member secureid'to ,one of said irst-named membersv and having a slot to receive the lother first-named member, and springsI secured to,` said other member vand adapted to engage said vstop member automatically `upon relativebmovement of' said iirst-named members. i I

6. In combination, a doora .doorv frame, a bracket secured tosai'd door ande'xtendin'g upwardly therefrom, aL rodpivoted on said bracket and extending horizontally above the upper edge of the door, a second bracketsecured kto the door frame, a' second rod pivoted to vsaidsecond-named bracket'and extending horizontally parallel tof saidlirst-l named rod, a lstop member ysecuredto said rst-named rod and having a slot slidably engaged by said second-named rod,`said stopk member having` grooves therein, andv leaf Asprings secured to said @second-namedy rod ,EDWRDPOSSONQ roo 

